ii8 



Parasitic Arthropoda 



87. 



Cordylobia anthropophaga (x3). 

 After Fiilleborn. 



This habit of blood-sucking by muscid larvas is usually referred 

 to as peculiar to Aucheromyia luteola but it should be noted that the 



larvae of Protocalliphora frequent the 

 nests of birds and feed upon the 

 young. Mr . A. F. Coutant has studied 

 especially the life-history and habits 

 of P azurea, whose larvee he found 

 attacking young crows at Ithaca, N . Y. 

 He was unable to induce the l&rvie to 

 feed on man. 



Cordylobia anthropophaga, {Ochro- 

 myia anthropophaga), or Tvinibu-fly 

 (fig. 87) is an African species whose 

 larvas affect man much as do those of 

 Dermatobia cyniventris, of Central and 

 South America. The larva (fig. 88), which is known as "ver du 

 Cayor" because it was first observed in Cayor, in Senegambia, 

 develops in the skin of man and of various animals, such as dogs, 

 cats, and monkeys. It is about 12 mm. in length, and of the form 

 of the larvffi of other muscids. Upon the intermediate segments are 

 minute, brownish recurved spines which give to the larva its char- 

 acteristic appearance. The life-history is not satisfactorily worked 

 out, but Ftiller (19 14), after reviewing 

 the evidence believes that, as a rule, it 

 deposits its young in the sleeping places 

 of man and animals, whether such be a 

 bed, a board, the floor, or the bare ground. 

 In the case of babies, the maggots may 

 be deposited on the scalp. The minute 

 maggots bore their way painlessly into 

 the skin. As many as forty parasites 

 have been found in one individual and 

 one author has reported finding more 

 than three hundred in a spaniel puppy. 

 Though their attacks are at times ex- 

 tremely painful, it is seldom that any „„ , 



■' 88. Larva of Cordylobia anthro- 

 SerioUS results follow. pophaga. After Blanchard. 



